Browsing University of Hertfordshire by Author "Jones, Christine"

Now showing items 1-4 of 4

    • A 1D fluid model of the Centaurus A jet 

      Wykes, Sarka; Snios, Bradford T.; Nulsen, Paul E. J.; Kraft, Ralph P.; Birkinshaw, Mark; Hardcastle, Martin J.; Worrall, Diana M.; McDonald, Iain; Rejkuba, Marina; Jones, Thomas W.; Stark, David J.; Forman, William R.; Meyer, Eileen T.; Jones, Christine (2019-05-01)
      We implement a steady, one-dimensional flow model for the X-ray jet of Centaurus A in which entrainment of stellar mass loss is the primary cause of dissipation. Using over 260 ks of new and archival Chandra/ACIS data, we ...

    • Chandra view of Abell 407: The central compact group of galaxies and the interaction between the radio AGN and the ICM 

      Geng, Chao; Ge, Chong; Lal, Dharam V.; Sun, Ming; Ji, Li; Xu, Haiguang; Liu, Wenhao; Hardcastle, Martin; Forman, William; Kraft, Ralph; Jones, Christine (2022-02-11)
      Abell 407 (A407) is a unique galaxy cluster hosting a central compact group of nine galaxies (named as 'Zwicky's Nonet'; G1 - G9 in this work) within a 30 kpc radius region. The cluster core also hosts a luminous radio ...

    • A Spectacular Bow Shock in the 11 keV Galaxy Cluster Around 3C 438 

      Emery, Deanna L.; Bogdan, Akos; Kraft, Ralph P.; Andrade-Santos, Felipe; Forman, William R.; Hardcastle, Martin; Jones, Christine (2017-01-11)
      We present results of deep 153 ks Chandra observations of the hot, 11 keV, galaxy cluster associated with the radio galaxy 3C 438. By mapping the morphology of the hot gas and analyzing its surface brightness and temperature ...

    • Variability and Proper Motion of X-ray Knots in the Jet of Centaurus A 

      Snios, Bradford; Wykes, Sarka; Nulsen, Paul E. J.; Kraft, Ralph P.; Meyer, Eileen T.; Birkinshaw, Mark; Worrall, Diana M.; Hardcastle, Martin J.; Roediger, Elke; Forman, William R.; Jones, Christine (2019-02-05)
      We report results from Chandra observations analyzed for evidence of variability and proper motion in the X-ray jet of Centaurus A. Using data spanning 15 yr, collective proper motion of 11.3 ± 3.3 mas yr -1 , or 0.68 ± ...